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Results for "

covalent coupling

" in MedChemExpress (MCE) Product Catalog:

29

Inhibitors & Agonists

16

Fluorescent Dyes

7

Biochemical Assay Reagents

2

Peptides

16

MCE Kits

2

Click Chemistry

1

Oligonucleotides

Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-D2468
    HRP-Streptavidin
    1 Publications Verification

    Fluorescent Dye Others
    Sulfonylurea Receptor HRP-Streptavidin is a biotin-binding signal amplifier designed to bind tightly with biotinylated anti-TSH monoclonal antibodies, thereby constituting a key component of the signal amplification system in immunoassays. HRP-Streptavidin is formed by the covalent coupling of Horseradish Peroxidase (HRP) with Streptavidin; it combines the highly efficient catalytic activity of the enzyme with the high affinity of Streptavidin for biotin, making it a potent and sensitive tool for signal amplification. HRP-Streptavidin is suitable for use in Western Blotting, ELISA, and other detection techniques .
    HRP-Streptavidin
  • HY-130086

    ADC Linker Cancer
    Bis-PEG4-NHS ester is a crosslinking reagent and amine-reactive modulator .Bis-PEG4-NHS ester reacts with primary amine groups on liposome surfaces via amide bond formation to covalently attach dibenzylcyclooctyne groups, with a hydrophilic PEG4 spacer reducing steric hindrance for subsequent click chemistry .Bis-PEG4-NHS ester enables site-specific antibody coupling to liposome surfaces via copper-free strain-promoted alkyne-azide cycloaddition click chemistry without disrupting liposome structure in minimal organic solvent volumes .Bis-PEG4-NHS ester undergoes hydrolysis during annealing to form -COOH groups that interact with PbI and FAI to enhance perovskite structural integrity, passivate defects, and modulate nucleation kinetics to regulate crystal growth .Bis-PEG4-NHS ester enhances device efficiency and long-term stability when used as an antisolvent additive for p-i-n perovskite solar cells .
    Bis-​PEG4-​NHS ester
  • HY-D2171A
    AF488 DBCO ditriethylamine
    1 Publications Verification

    Fluorescent Dye Others
    AF488 DBCO ditriethylamineis a fluorescent dye and also a click chemistry reagent that can label azide-containing biomolecules. AF488 DBCO ditriethylaminemediates the coupling reaction with azide-modified 2'-OMe RNA oligonucleotides. DBCO is a bioorthogonal partner of azides and enables covalent coupling without copper (Ex/Em = 470/520 nm) .
    AF488 DBCO ditriethylamine
  • HY-W591476

    mPEG1000-SH

    Biochemical Assay Reagents Others
    m-PEG1000-thiol is a surface modifier that can modify DNA thiolation and is used in the synthesis of gold nanorods (AuNR). m-PEG1000-thiol can load thiolated DNA onto AuNR, form a covalent bond with the surface of gold nanoparticles through the thiol group, and stabilize the nanoparticles by the steric hindrance effect of the polyethylene glycol chain, preventing aggregation and enhancing its biocompatibility. m-PEG1000-thiol can also provide a platform for the subsequent coupling of biomolecules (such as DNA, antibodies) by replacing surfactants (such as CTAB) on the surface of nanoparticles, thereby exerting its activity in promoting the functionalization of nanomaterials [2].
    m-PEG1000-thiol
  • HY-D1916

    Fluorescent Dye Mucin Others
    ATTO 594 is a Fluorescent dye (excitation/emission = 603/626 nm). ATTO 594 is covalently conjugated to Mucin via carbodiimide coupling .
    ATTO 594
  • HY-170704

    Liposome Metabolic Disease Cancer
    DSPE-PEG2000-TCO is a click chemistry coupling partner. DSPE-PEG2000-TCO undergoes a reverse electron-demand Diels-Alder click reaction to form a covalent linkage with tetrazine-modified Cetuximab (HY-P9905). DSPE-PEG2000-TCO maintains the stability of lipid nanoparticles (LNPs) and has high mRNA encapsulation efficiency, which supports cellular uptake and mRNA transfection. DSPE-PEG2000-TCO is used to prepare EGFR-targeted and APN-targeted mRNA-loaded LNPs, mediating receptor-dependent endocytosis, mRNA delivery, and intestinal epithelial transcytosis .
    DSPE-PEG2000-TCO
  • HY-D2171

    Fluorescent Dye Others
    AF488 DBCO is a fluorescent dye and also a click chemistry reagent that can label azide-containing biomolecules. AF488 DBCO mediates the coupling reaction with azide-modified 2'-OMe RNA oligonucleotides. DBCO is a bioorthogonal partner of azides and enables covalent coupling without copper (Ex/Em = 470/520 nm) .
    AF488 DBCO
  • HY-D2502

    Fluorescent Dye Others
    Cy7 hydrazide is a Cy7 (HY-D0825) dye derivative with hydrazine functionality. The hydrazide group of Cy7 hydrazide can form hydrazinone coupling with molecules containing aldehydes or ketones to form covalent bonds .
    Cy7 hydrazide
  • HY-D2956

    CLIP-GLA-NHS

    Biochemical Assay Reagents Others
    BC-GLA-NHS (CLIP-GLA-NHS) is a NHS-labeled CLIP tag, which is an amine-reactive crosslinker and can achieve site-specific protein labeling. The NHS ester of BC-GLA-NHS reacts with the primary amine of the target molecule (such as antibodies, quantum dots) in a pH 7.5-8.5 buffer solution to form a stable amide bond. After coupling, the BC molecule undergoes a nucleophilic substitution reaction with the active site (Cys) of the CLIP-tagged fusion protein, releasing benzylcytosine and forming an irreversible thioether bond, achieving covalent labeling. BC-GLA-NHS can be used for click chemistry labeling .
    BC-GLA-NHS
  • HY-118112

    Biochemical Assay Reagents Others
    4-N-Maleimidobenzoicacid-NHS is a PEG linker that finds utility in bioconjugation endeavors and protein labeling ventures. Specifically designed for selective reaction with thiol groups, the maleimide group establishes covalent linkages, thereby facilitating the coupling of proteins, peptides, or diverse molecules to thiol-bearing biomolecules. The NHS ester is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic conditions to form a covalent bond.
    4-N-Maleimidobenzoicacid-NHS
  • HY-D2154

    Fluorescent Dye Others
    AF 430 carboxylic acid is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 carboxylic acid can form covalent bonds through a condensation reaction between carboxylic acid groups and molecules containing amino groups. To achieve specific coupling of dye labels and biomolecules .
    AF 430 carboxylic acid dipotassium
  • HY-114352

    Fluorescent Dye Others
    BODIPY FL-X is a green-fluorescent dye. BODIPY FL-X has the succinimidyl ester covalently coupled to proteins. BODIPY FL-X has high fluorescence quantum yield and is relatively insensitive to pH change. (λex=504 nm, λem=510 nm) .
    BODIPY FL-X
  • HY-D2150

    Fluorescent Dye Others
    AF 430 maleimide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 maleimide contains maleimide groups that react with thiol groups to form covalent bonds. To achieve specific coupling of dye labels and biomolecules .
    AF 430 maleimide
  • HY-W751932

    Biochemical Assay Reagents Others
    Carboxy-EG6-undecanethiol is an alkanethiol that suitable for self-assembly a gold thin-film substrate. Carboxy-EG6-undecanethiol can selectively capture HbA1c in sample by covalent coupling of 3-aminophenyl boronic acid (3-APBA) .
    Carboxy-EG6-undecanethiol
  • HY-D2388

    Fluorescent Dye Others
    Sulfo Cy5.5-hydrazide is a Cy5.5 (HY-D0924) dye derivative with hydrazine functionality. The hydrazide group of Sulfo Cy5.5-hydrazide can form hydrazinone coupling with molecules containing aldehydes or ketones to form covalent bonds .
    Sulfo CY5.5 hydrazide
  • HY-D2163

    Fluorescent Dye Others
    AF 430 amine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 amine can form covalent bonds through a condensation reaction between amino groups and molecules containing carboxyl groups. To achieve specific coupling of dye labels and biomolecules .
    AF 430 amine
  • HY-P10306

    Bacterial Infection
    Cys-LL37 is a biomaterial with antimicrobial properties developed by covalently fixing to the surface of titanium. Cys-LL37 uses a flexible hydrophilic polyethylene glycol spacer and selective n-terminal coupling LL37, a surface peptide layer that kills bacteria on contact is formed. Cys-LL37 can be used in research to develop new antimicrobial biomaterials .
    Cys-LL37
  • HY-174949B

    FMOC-NH-PEG3400-Thiol

    Biochemical Assay Reagents Others
    FMOC-NH-PEG3400-SH (FMOC-NH-PEG3400-Thiol) is a PEG derivative with an Fmoc protecting group and a thiol (-SH) reactive group. The thiol group is a highly reactive chemical group that can react specifically with a variety of molecules to form stable covalent bonds. Fmoc is a commonly used amino protecting group that protects the amino group from unwanted reactions until it is removed when a specific coupling reaction is required.
    FMOC-NH-PEG3400-SH
  • HY-161910

    Anaplastic lymphoma kinase (ALK) Cancer
    SH-E4A-66 is a C 2-COUPLr (COvalent Protein Ligator) with carbazole scaffold barring heterogeneous cysteine reactive warheads (acrylamide and chloroacetamide). SH-E4A-66 is capable of coupling with EML4-ALK (EC50=1.5 μM) and inhibiting the activity of EML4-ALK kinase (IC50=2.3 μM) .
    SH-E4A-66
  • HY-D1861

    Fluorescent Dye Others
    Sulfo-Cy3 hydrazide is a Cyanine 3 (Cy3) (HY-D0822) dye derivative with hydrazine functionality. The sulfonate ion increases the water solubility of the compound, making it suitable for use in aqueous solutions. Cy3 is a fluorescent dye with a fluorescence spectrum typically in the green to orange wavelength range. The hydrazide group of Sulfo-Cy3 hydrazide can form hydrazinone coupling with molecules containing aldehydes or ketones to form covalent bonds. Therefore, Cy3 azide plus can bind to biomolecules such as proteins and antibodies to track their location and dynamic changes in biological samples.
    Sulfo-Cy3 hydrazide
  • HY-D2388A

    Fluorescent Dye Others
    Sulfo Cy5.5-hydrazide sodium is a Cy5.5 (HY-D0924) dye derivative with hydrazine functionality. The hydrazide group of Sulfo Cy5.5-hydrazide sodium can form hydrazinone coupling with molecules containing aldehydes or ketones to form covalent bonds .
    Sulfo Cy5.5-hydrazide sodium
  • HY-D3049

    Fluorescent Dye Others
    5(6)-carbonylated rhodamine 110 NHS ester is a reactive ester fluorescent reagent based on 5(6)-carbonylated rhodamine 110. NHS ester is a highly reactive ester capable of covalently coupling with primary amine groups in molecules such as proteins, peptides, amino sugars, and nucleic acids to form stable amide bonds (Ex/Em = 502/527 nm).
    5(6)-carbonylated rhodamine 110 NHS ester
  • HY-D3050

    Fluorescent Dye Others
    5(6)-carbonylated rhodamine 110 X NHS ester is a reactive ester fluorescent reagent based on 5(6)-carbonylated rhodamine 110 X. NHS ester is a highly reactive ester capable of covalently coupling with primary amine groups in molecules such as proteins, peptides, amino sugars, and nucleic acids to form stable amide bonds (Ex/Em = 496/522 nm).
    5(6)-carbonylated rhodamine 110 X NHS ester
  • HY-D3053

    Fluorescent Dye Others
    5(6)-Rhodamine 6G NHS ester is a reactive ester fluorescent reagent based on Rhodamine 6G (HY-D0309). NHS ester is a highly reactive ester capable of covalently coupling with primary amine groups in molecules such as proteins, peptides, amino sugars, and nucleic acids to form stable amide bonds (Ex/Em = 526/547 nm).
    5(6)-Rhodamine 6G NHS ester
  • HY-P5423D

    Exosomes Others
    Ahx-GALA-Cys is a GALA peptide (HY-P5423) derivative with an N-terminal 6-aminohexanoic acid (Ahx) linker and a C-terminal cysteine residue. Ahx-GALA-Cys possesses strong covalent coupling capacity, which can be used to conjugate fluorophores and targeting ligands for investigating the surface functionalization of small extracellular vesicles (sEV) and lysosomal escape .
    Ahx-GALA-Cys
  • HY-174949C

    FMOC-NH-PEG5000-Thiol

    Biochemical Assay Reagents Others
    FMOC-NH-PEG5000-SH (FMOC-NH-PEG5000-Thiol) is a PEG derivative with an Fmoc protecting group and a thiol (-SH) reactive group. The thiol group is a highly reactive chemical group that can react specifically with a variety of molecules to form stable covalent bonds. Fmoc is a commonly used amino protecting group that protects the amino group from unwanted reactions until it is removed when a specific coupling reaction is required.
    FMOC-NH-PEG5000-SH
  • HY-174949D

    FMOC-NH-PEG10000-Thiol

    Biochemical Assay Reagents Others
    FMOC-NH-PEG10000-SH (FMOC-NH-PEG10000-Thiol) is a PEG derivative with an Fmoc protecting group and a thiol (-SH) reactive group. The thiol group is a highly reactive chemical group that can react specifically with a variety of molecules to form stable covalent bonds. Fmoc is a commonly used amino protecting group that protects the amino group from unwanted reactions until it is removed when a specific coupling reaction is required.
    FMOC-NH-PEG10000-SH
  • HY-174949

    FMOC-NH-PEG1000-Thiol

    Biochemical Assay Reagents Others
    FMOC-NH-PEG1000-SH (FMOC-NH-PEG1000-Thiol) is a PEG derivative with an Fmoc protecting group and a thiol (-SH) reactive group. The thiol group is a highly reactive chemical group that can react specifically with a variety of molecules to form stable covalent bonds. Fmoc is a commonly used amino protecting group that protects the amino group from unwanted reactions until it is removed when a specific coupling reaction is required.
    FMOC-NH-PEG1000-SH
  • HY-174949A

    FMOC-NH-PEG2000-Thiol

    Biochemical Assay Reagents Others
    FMOC-NH-PEG2000-SH (FMOC-NH-PEG2000-Thiol) is a PEG derivative with an Fmoc protecting group and a thiol (-SH) reactive group. The thiol group is a highly reactive chemical group that can react specifically with a variety of molecules to form stable covalent bonds. Fmoc is a commonly used amino protecting group that protects the amino group from unwanted reactions until it is removed when a specific coupling reaction is required.
    FMOC-NH-PEG2000-SH

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